<template>
  <div class="home-page">
    <section class="py-5 text-center container">
      <div class="row py-lg-5">
        <div class="col-lg-6 col-md-8 mx-auto">
          <img src="../assets/callout.svg" alt="callout" class="w-50" />
          <h2 class="font-weight-light">随心写作，自由表达</h2>
          <p>
            <a href="#" class="btn btn-primary my-2">开始写文章</a>
          </p>
        </div>
      </div>
    </section>
    <h4 class="font-weight-bold text-center">发现精彩</h4>
    <column-list :list="list"></column-list>
    <button
      class="btn btn-outline-primary mt-2 mb-5 mx-auto btn-block w-25"
      @click="loadMorePage"
      v-if="!isLastPage"
    >
      加载更多
    </button>
  </div>
</template>

<script lang="ts">
import { defineComponent, computed, onMounted } from "vue";
import { useStore } from "vuex";
import { GlobalDataProps } from "../store";
import useLoadMore from "../hooks/useLoadMore";
import ColumnList from "../components/ColumnList.vue";

export default defineComponent({
  name: "Home",
  components: {
    ColumnList,
  },
  setup() {
    const store = useStore<GlobalDataProps>();
    const total = computed(() => store.state.columns.total);
    onMounted(() => {
      store.dispatch("fetchColumns", { pageSize: 3 });
    });
    const list = computed(() => store.getters.getColumns);
    const { loadMorePage, isLastPage } = useLoadMore("fetchColumns", total, {
      pageSize: 3,
      currentPage: 2,
    });
    return {
      list,
      loadMorePage,
      isLastPage,
    };
  },
});
</script>
